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@alexytiger
Created January 20, 2020 01:03
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e-book
public abortPurchaseContract(contractAddress: string): Observable<string> {
const contract: Contract = new ethers.Contract(contractAddress, this.abi, this.provider.getSigner());
// Call the contract method, getting back the transaction tx
const token = contract.abortBySeller();
return from(token)
.pipe(
switchMap((tx: any) => {
console.log('abortBySeller Tx:', tx);
// Wait for transaction to be mined
// Returned a Promise which would resolve to the TransactionReceipt once it is mined.
return from(tx.wait()).pipe(
tap((txReceipt: any) => console.log('txReceipt: ', txReceipt)),
// The receipt will have an "events" Array, which will have
// the emitted event from the Contract.
// The "LogCanceledBySeller" is the only event.
map(txReceipt => txReceipt.events.pop()),
tap(txEvent => console.log('event: ', txEvent.event)),
mapTo(contractAddress),
)
}))
}
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